./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7974aea234ea67c4e1d89d7ea89ee451215e1945a5f9a1cb24e7e2cde01d6ea2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:15,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:15,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:23:15,843 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:15,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:15,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:15,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:15,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:15,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:23:15,874 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:23:15,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:15,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:15,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:15,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:15,877 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:15,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:15,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:15,879 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:15,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:23:15,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:15,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:15,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:15,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:15,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:15,882 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:15,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:15,883 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:15,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:15,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:15,884 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:23:15,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:15,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:15,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:15,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:15,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:15,886 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:23:15,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:23:15,886 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:15,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:15,887 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:15,887 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:15,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:15,888 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7974aea234ea67c4e1d89d7ea89ee451215e1945a5f9a1cb24e7e2cde01d6ea2 [2023-11-21 22:23:16,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:16,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:16,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:16,149 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:16,150 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:16,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i [2023-11-21 22:23:19,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:19,918 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:19,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i [2023-11-21 22:23:19,956 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/data/00ad931db/f723e9a5557e4dcd8b5753e1183eea64/FLAGe9a57a645 [2023-11-21 22:23:19,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/data/00ad931db/f723e9a5557e4dcd8b5753e1183eea64 [2023-11-21 22:23:19,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:19,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:19,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:19,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:19,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:19,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:19" (1/1) ... [2023-11-21 22:23:19,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd6a5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:19, skipping insertion in model container [2023-11-21 22:23:19,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:19" (1/1) ... [2023-11-21 22:23:20,078 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:20,357 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:23:20,863 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:23:20,865 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:23:20,867 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i[63098,63111] [2023-11-21 22:23:20,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:20,884 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:20,905 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:23:20,936 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:23:20,938 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:23:20,939 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i[63098,63111] [2023-11-21 22:23:20,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:21,074 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:23:21,074 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:23:21,082 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:21,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21 WrapperNode [2023-11-21 22:23:21,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:21,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:21,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:21,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:21,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,157 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-21 22:23:21,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:21,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:21,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:21,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:21,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,172 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,182 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 22:23:21,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:21,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:21,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:21,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:21,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:21,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:21,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:21,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:21,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 22:23:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:23:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:23:21,427 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:21,430 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:21,543 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:21,600 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:21,600 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:23:21,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:21 BoogieIcfgContainer [2023-11-21 22:23:21,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:21,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:21,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:21,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:21,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:19" (1/3) ... [2023-11-21 22:23:21,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46aba5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:21, skipping insertion in model container [2023-11-21 22:23:21,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (2/3) ... [2023-11-21 22:23:21,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46aba5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:21, skipping insertion in model container [2023-11-21 22:23:21,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:21" (3/3) ... [2023-11-21 22:23:21,612 INFO L112 eAbstractionObserver]: Analyzing ICFG tanh_4_safe.c-amalgamation.i [2023-11-21 22:23:21,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:21,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:23:21,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:21,695 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1783b0eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:21,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:23:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:21,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:23:21,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:21,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:23:21,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:23:21,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:21,714 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 22:23:21,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:21,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427986904] [2023-11-21 22:23:21,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:21,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:23:21,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:23:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:23:21,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:23:21,876 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:23:21,878 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:23:21,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:23:21,887 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:23:21,892 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:23:21,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:23:21 BoogieIcfgContainer [2023-11-21 22:23:21,910 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:23:21,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:23:21,911 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:23:21,911 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:23:21,912 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:21" (3/4) ... [2023-11-21 22:23:21,914 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:23:21,916 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:23:21,918 INFO L158 Benchmark]: Toolchain (without parser) took 1931.54ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 61.9MB in the end (delta: 40.0MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2023-11-21 22:23:21,918 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:21,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1095.47ms. Allocated memory is still 148.9MB. Free memory was 101.8MB in the beginning and 92.0MB in the end (delta: 9.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2023-11-21 22:23:21,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.37ms. Allocated memory is still 148.9MB. Free memory was 91.9MB in the beginning and 89.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:23:21,921 INFO L158 Benchmark]: Boogie Preprocessor took 37.23ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:23:21,922 INFO L158 Benchmark]: RCFGBuilder took 406.03ms. Allocated memory is still 148.9MB. Free memory was 87.0MB in the beginning and 75.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:23:21,923 INFO L158 Benchmark]: TraceAbstraction took 304.97ms. Allocated memory is still 148.9MB. Free memory was 75.2MB in the beginning and 62.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:23:21,923 INFO L158 Benchmark]: Witness Printer took 5.72ms. Allocated memory is still 148.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:21,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1095.47ms. Allocated memory is still 148.9MB. Free memory was 101.8MB in the beginning and 92.0MB in the end (delta: 9.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.37ms. Allocated memory is still 148.9MB. Free memory was 91.9MB in the beginning and 89.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.23ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 406.03ms. Allocated memory is still 148.9MB. Free memory was 87.0MB in the beginning and 75.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 304.97ms. Allocated memory is still 148.9MB. Free memory was 75.2MB in the beginning and 62.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.72ms. Allocated memory is still 148.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 853]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 853, overapproximation of someBinaryArithmeticFLOAToperation at line 848. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; [L849] COND FALSE !(!(!__builtin_isnan (x1))) [L850] float y1 = tanhf(x1); [L851] float y2 = tanhf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] COND TRUE !(__builtin_isgreaterequal(derivative, 0.0f)) [L853] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 22:23:21,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7974aea234ea67c4e1d89d7ea89ee451215e1945a5f9a1cb24e7e2cde01d6ea2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:25,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:25,177 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:23:25,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:25,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:25,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:25,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:25,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:25,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:23:25,249 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:23:25,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:25,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:25,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:25,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:25,254 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:25,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:25,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:25,256 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:25,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:25,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:25,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:25,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:25,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:25,261 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:23:25,261 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:23:25,262 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:23:25,262 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:25,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:25,264 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:25,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:25,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:25,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:23:25,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:25,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:25,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:25,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:25,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:25,269 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:23:25,269 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:23:25,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:25,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:25,271 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:25,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:25,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:25,273 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:23:25,273 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7974aea234ea67c4e1d89d7ea89ee451215e1945a5f9a1cb24e7e2cde01d6ea2 [2023-11-21 22:23:25,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:25,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:25,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:25,832 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:25,833 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:25,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i [2023-11-21 22:23:29,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:29,511 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:29,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i [2023-11-21 22:23:29,545 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/data/1b3a54b88/73cef2b8ba5e4beab35e6d028c4f4e6d/FLAG53c40b810 [2023-11-21 22:23:29,571 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/data/1b3a54b88/73cef2b8ba5e4beab35e6d028c4f4e6d [2023-11-21 22:23:29,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:29,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:29,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:29,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:29,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:29,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:29" (1/1) ... [2023-11-21 22:23:29,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c1242e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:29, skipping insertion in model container [2023-11-21 22:23:29,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:29" (1/1) ... [2023-11-21 22:23:29,693 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:30,008 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:23:30,867 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:23:30,870 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:23:30,871 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i[63098,63111] [2023-11-21 22:23:30,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:30,896 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:30,936 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:23:30,997 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:23:30,998 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:23:30,999 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/sv-benchmarks/c/neural-networks/tanh_4_safe.c-amalgamation.i[63098,63111] [2023-11-21 22:23:31,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:31,178 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:23:31,179 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:23:31,187 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:31,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31 WrapperNode [2023-11-21 22:23:31,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:31,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:31,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:31,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:31,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,272 INFO L138 Inliner]: procedures = 560, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-21 22:23:31,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:31,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:31,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:31,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:31,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,288 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,299 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 22:23:31,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,310 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:31,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:31,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:31,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:31,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (1/1) ... [2023-11-21 22:23:31,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:31,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:31,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:31,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:23:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 22:23:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 22:23:31,591 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:31,594 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:32,427 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:32,533 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:32,535 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:23:32,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:32 BoogieIcfgContainer [2023-11-21 22:23:32,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:32,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:32,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:32,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:32,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:29" (1/3) ... [2023-11-21 22:23:32,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e25bac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:32, skipping insertion in model container [2023-11-21 22:23:32,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:31" (2/3) ... [2023-11-21 22:23:32,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e25bac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:32, skipping insertion in model container [2023-11-21 22:23:32,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:32" (3/3) ... [2023-11-21 22:23:32,552 INFO L112 eAbstractionObserver]: Analyzing ICFG tanh_4_safe.c-amalgamation.i [2023-11-21 22:23:32,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:32,591 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:23:32,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:32,662 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@576675e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:32,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:23:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:32,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:23:32,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:32,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:23:32,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:23:32,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:32,680 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 22:23:32,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:23:32,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221822472] [2023-11-21 22:23:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:32,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:23:32,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:23:32,693 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:23:32,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 22:23:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:23:33,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:23:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:23:33,517 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 22:23:33,518 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:23:33,519 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:23:33,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-21 22:23:33,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:23:33,730 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:23:33,733 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:23:33,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:23:33 BoogieIcfgContainer [2023-11-21 22:23:33,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:23:33,751 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:23:33,751 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:23:33,751 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:23:33,752 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:32" (3/4) ... [2023-11-21 22:23:33,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:23:33,755 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:23:33,756 INFO L158 Benchmark]: Toolchain (without parser) took 4168.22ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 59.9MB in the beginning and 81.5MB in the end (delta: -21.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2023-11-21 22:23:33,757 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 86.0MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:33,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1598.97ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 59.9MB in the beginning and 78.8MB in the end (delta: -18.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-21 22:23:33,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.25ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 75.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:23:33,759 INFO L158 Benchmark]: Boogie Preprocessor took 45.59ms. Allocated memory is still 119.5MB. Free memory was 75.8MB in the beginning and 74.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:23:33,760 INFO L158 Benchmark]: RCFGBuilder took 1217.21ms. Allocated memory is still 119.5MB. Free memory was 74.0MB in the beginning and 60.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:23:33,760 INFO L158 Benchmark]: TraceAbstraction took 1210.30ms. Allocated memory is still 119.5MB. Free memory was 60.1MB in the beginning and 81.5MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:33,761 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 119.5MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:33,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 86.0MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1598.97ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 59.9MB in the beginning and 78.8MB in the end (delta: -18.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.25ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 75.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.59ms. Allocated memory is still 119.5MB. Free memory was 75.8MB in the beginning and 74.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1217.21ms. Allocated memory is still 119.5MB. Free memory was 74.0MB in the beginning and 60.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1210.30ms. Allocated memory is still 119.5MB. Free memory was 60.1MB in the beginning and 81.5MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 119.5MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 853]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of tanhf at line 850. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; [L849] COND FALSE !(!(!__builtin_isnan (x1))) [L850] float y1 = tanhf(x1); [L851] float y2 = tanhf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; VAL [derivative=NaN, x1=-2305843558969507800, x2=-2305843558969507800, y1=NaN, y2=-0.000000000000007049916206369744] [L853] COND TRUE !(__builtin_isgreaterequal(derivative, 0.0f)) VAL [derivative=NaN, x1=-2305843558969507800, x2=-2305843558969507800, y1=NaN, y2=-0.000000000000007049916206369744] [L853] reach_error() VAL [derivative=NaN, x1=-2305843558969507800, x2=-2305843558969507800, y1=NaN, y2=-0.000000000000007049916206369744] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 22:23:33,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e389b1f-603a-4bbb-93cc-e0895a80c7e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample